The Boys reportedly sang the Girls’ hits “Wannabe” and “Say You’ll Be There,” followed by other girl power anthems like No Doubt’s “Just A Girl,” Pink’s “Raise Your Glass” and Britney Spears’ “Oops!... I Did It Again.” Throwback Tuesday, much?!

According to Instagram, the inspiration behind the nostalgia-inducing outfits was to celebrate “all of the girl power that’s kept us going for 25 years.”